The riff in #2 is killer. I like how you start simple, adding complexity until after a few rounds you are playing the full version. The lesson is short and clear about what you are doing.
This riff is what you know quite well as "crooked". Most guys here are blues guys and not old tyme/traditional players and may get confused in trying to count out the riff in 4/4. If so, they will wonder why there seems to be an extra beat.
Crooked tunes do not fit comfortably in our Western European 4/4 mind set. They are melody driven, which means, the melody does what it does and the heck with trying to fit them into standard measures. Therefore, they will have an extra beat at the end, an extra beat and a half, two extra beats, etc, depending on the tune.
Seeing as how you are steeped in this tradition, you may even be better at explaining what is going on here. ---------- The Iceman